audio-lnx: Initial change for techpack of audio drivers.
Add snapshot for audio drivers for SDM targets. The code is
migrated from msm-4.9 kernel at the below cutoff -
(74ff856e8d6: "net: ipc_router: Add dynamic enable/disable
wakeup source feature")
This changes are done for new techpack addition
for audio kernel. Migrate all audio kernel drivers
to this techpack.
Change-Id: I33d580af3ba86a5cb777583efc5d4cdaf2882d93
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
diff --git a/drivers/mfd/wcd9xxx-core.c b/drivers/mfd/wcd9xxx-core.c
new file mode 100644
index 0000000..b373acb
--- /dev/null
+++ b/drivers/mfd/wcd9xxx-core.c
@@ -0,0 +1,1714 @@
+/* Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/ratelimit.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/wcd9xxx/wcd9xxx-slimslave.h>
+#include <linux/mfd/wcd9xxx/core.h>
+#include <linux/mfd/wcd9xxx/wcd9xxx-irq.h>
+#include <linux/mfd/wcd9xxx/pdata.h>
+#include <linux/mfd/wcd9xxx/wcd9xxx_registers.h>
+#include <linux/mfd/msm-cdc-pinctrl.h>
+#include <linux/mfd/wcd9xxx/wcd9xxx-utils.h>
+#include <linux/mfd/msm-cdc-supply.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/debugfs.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include "wcd9xxx-regmap.h"
+
+#define WCD9XXX_REGISTER_START_OFFSET 0x800
+#define WCD9XXX_SLIM_RW_MAX_TRIES 3
+#define SLIMBUS_PRESENT_TIMEOUT 100
+
+#define MAX_WCD9XXX_DEVICE 4
+#define WCD9XXX_I2C_GSBI_SLAVE_ID "3-000d"
+#define WCD9XXX_I2C_TOP_SLAVE_ADDR 0x0d
+#define WCD9XXX_ANALOG_I2C_SLAVE_ADDR 0x77
+#define WCD9XXX_DIGITAL1_I2C_SLAVE_ADDR 0x66
+#define WCD9XXX_DIGITAL2_I2C_SLAVE_ADDR 0x55
+#define WCD9XXX_I2C_TOP_LEVEL 0
+#define WCD9XXX_I2C_ANALOG 1
+#define WCD9XXX_I2C_DIGITAL_1 2
+#define WCD9XXX_I2C_DIGITAL_2 3
+
+/*
+ * Number of return values needs to be checked for each
+ * registration of Slimbus of I2C bus for each codec
+ */
+#define NUM_WCD9XXX_REG_RET 4
+
+#define SLIM_USR_MC_REPEAT_CHANGE_VALUE 0x0
+#define SLIM_REPEAT_WRITE_MAX_SLICE 16
+#define REG_BYTES 2
+#define VAL_BYTES 1
+#define WCD9XXX_PAGE_NUM(reg) (((reg) >> 8) & 0xff)
+#define WCD9XXX_PAGE_SIZE 256
+
+struct wcd9xxx_i2c {
+ struct i2c_client *client;
+ struct i2c_msg xfer_msg[2];
+ struct mutex xfer_lock;
+ int mod_id;
+};
+
+static struct regmap_config wcd9xxx_base_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .can_multi_write = true,
+};
+
+static struct regmap_config wcd9xxx_i2c_base_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .can_multi_write = false,
+ .use_single_rw = true,
+};
+
+static u8 wcd9xxx_pgd_la;
+static u8 wcd9xxx_inf_la;
+
+static const int wcd9xxx_cdc_types[] = {
+ [WCD9XXX] = WCD9XXX,
+ [WCD9330] = WCD9330,
+ [WCD9335] = WCD9335,
+ [WCD934X] = WCD934X,
+};
+
+static const struct of_device_id wcd9xxx_of_match[] = {
+ { .compatible = "qcom,tasha-i2c-pgd",
+ .data = (void *)&wcd9xxx_cdc_types[WCD9335]},
+ { .compatible = "qcom,wcd9xxx-i2c",
+ .data = (void *)&wcd9xxx_cdc_types[WCD9330]},
+ { }
+};
+MODULE_DEVICE_TABLE(of, wcd9xxx_of_match);
+
+static int wcd9xxx_slim_device_up(struct slim_device *sldev);
+static int wcd9xxx_slim_device_down(struct slim_device *sldev);
+
+struct wcd9xxx_i2c wcd9xxx_modules[MAX_WCD9XXX_DEVICE];
+
+static int wcd9xxx_slim_multi_reg_write(struct wcd9xxx *wcd9xxx,
+ const void *data, size_t count)
+{
+ unsigned int reg;
+ struct device *dev;
+ u8 val[WCD9XXX_PAGE_SIZE];
+ int ret = 0;
+ int i = 0;
+ int n = 0;
+ unsigned int page_num;
+ size_t num_regs = (count / (REG_BYTES + VAL_BYTES));
+ struct wcd9xxx_reg_val *bulk_reg;
+ u8 *buf;
+
+ dev = wcd9xxx->dev;
+ if (!data) {
+ dev_err(dev, "%s: data is NULL\n", __func__);
+ return -EINVAL;
+ }
+ if (num_regs == 0)
+ return -EINVAL;
+
+ bulk_reg = kzalloc(num_regs * (sizeof(struct wcd9xxx_reg_val)),
+ GFP_KERNEL);
+ if (!bulk_reg)
+ return -ENOMEM;
+
+ buf = (u8 *)data;
+ reg = *(u16 *)buf;
+ page_num = WCD9XXX_PAGE_NUM(reg);
+ for (i = 0, n = 0; n < num_regs; i++, n++) {
+ reg = *(u16 *)buf;
+ if (page_num != WCD9XXX_PAGE_NUM(reg)) {
+ ret = wcd9xxx_slim_bulk_write(wcd9xxx, bulk_reg,
+ i, false);
+ page_num = WCD9XXX_PAGE_NUM(reg);
+ i = 0;
+ }
+ buf += REG_BYTES;
+ val[i] = *buf;
+ buf += VAL_BYTES;
+ bulk_reg[i].reg = reg;
+ bulk_reg[i].buf = &val[i];
+ bulk_reg[i].bytes = 1;
+ }
+ ret = wcd9xxx_slim_bulk_write(wcd9xxx, bulk_reg,
+ i, false);
+ if (ret)
+ dev_err(dev, "%s: error writing bulk regs\n",
+ __func__);
+
+ kfree(bulk_reg);
+ return ret;
+}
+
+/*
+ * wcd9xxx_interface_reg_read: Read slim interface registers
+ *
+ * @wcd9xxx: Pointer to wcd9xxx structure
+ * @reg: register adderss
+ *
+ * Returns register value in success and negative error code in case of failure
+ */
+int wcd9xxx_interface_reg_read(struct wcd9xxx *wcd9xxx, unsigned short reg)
+{
+ u8 val;
+ int ret;
+
+ mutex_lock(&wcd9xxx->io_lock);
+ ret = wcd9xxx->read_dev(wcd9xxx, reg, 1, (void *)&val,
+ true);
+ if (ret < 0)
+ dev_err(wcd9xxx->dev, "%s: Codec read 0x%x failed\n",
+ __func__, reg);
+ else
+ dev_dbg(wcd9xxx->dev, "%s: Read 0x%02x from 0x%x\n",
+ __func__, val, reg);
+
+ mutex_unlock(&wcd9xxx->io_lock);
+
+ if (ret < 0)
+ return ret;
+ else
+ return val;
+}
+EXPORT_SYMBOL(wcd9xxx_interface_reg_read);
+
+/*
+ * wcd9xxx_interface_reg_write: Write slim interface registers
+ *
+ * @wcd9xxx: Pointer to wcd9xxx structure
+ * @reg: register adderss
+ * @val: value of the register to be written
+ *
+ * Returns 0 for success and negative error code in case of failure
+ */
+int wcd9xxx_interface_reg_write(struct wcd9xxx *wcd9xxx, unsigned short reg,
+ u8 val)
+{
+ int ret;
+
+ mutex_lock(&wcd9xxx->io_lock);
+ ret = wcd9xxx->write_dev(wcd9xxx, reg, 1, (void *)&val, true);
+ dev_dbg(wcd9xxx->dev, "%s: Write %02x to 0x%x ret(%d)\n",
+ __func__, val, reg, ret);
+ mutex_unlock(&wcd9xxx->io_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(wcd9xxx_interface_reg_write);
+
+static int wcd9xxx_slim_read_device(struct wcd9xxx *wcd9xxx, unsigned short reg,
+ int bytes, void *dest, bool interface)
+{
+ int ret;
+ struct slim_ele_access msg;
+ int slim_read_tries = WCD9XXX_SLIM_RW_MAX_TRIES;
+
+ msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg;
+ msg.num_bytes = bytes;
+ msg.comp = NULL;
+
+ if (!wcd9xxx->dev_up) {
+ dev_dbg_ratelimited(
+ wcd9xxx->dev, "%s: No read allowed. dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ return 0;
+ }
+
+ while (1) {
+ mutex_lock(&wcd9xxx->xfer_lock);
+ ret = slim_request_val_element(interface ?
+ wcd9xxx->slim_slave : wcd9xxx->slim,
+ &msg, dest, bytes);
+ mutex_unlock(&wcd9xxx->xfer_lock);
+ if (likely(ret == 0) || (--slim_read_tries == 0))
+ break;
+ usleep_range(5000, 5100);
+ }
+
+ if (ret)
+ dev_err(wcd9xxx->dev, "%s: Error, Codec read failed (%d)\n",
+ __func__, ret);
+
+ return ret;
+}
+
+/*
+ * Interface specifies whether the write is to the interface or general
+ * registers.
+ */
+static int wcd9xxx_slim_write_device(struct wcd9xxx *wcd9xxx,
+ unsigned short reg, int bytes, void *src, bool interface)
+{
+ int ret;
+ struct slim_ele_access msg;
+ int slim_write_tries = WCD9XXX_SLIM_RW_MAX_TRIES;
+
+ msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg;
+ msg.num_bytes = bytes;
+ msg.comp = NULL;
+
+ if (!wcd9xxx->dev_up) {
+ dev_dbg_ratelimited(
+ wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ return 0;
+ }
+
+ while (1) {
+ mutex_lock(&wcd9xxx->xfer_lock);
+ ret = slim_change_val_element(interface ?
+ wcd9xxx->slim_slave : wcd9xxx->slim,
+ &msg, src, bytes);
+ mutex_unlock(&wcd9xxx->xfer_lock);
+ if (likely(ret == 0) || (--slim_write_tries == 0))
+ break;
+ usleep_range(5000, 5100);
+ }
+
+ if (ret)
+ pr_err("%s: Error, Codec write failed (%d)\n", __func__, ret);
+
+ return ret;
+}
+
+static int wcd9xxx_slim_get_allowed_slice(struct wcd9xxx *wcd9xxx,
+ int bytes)
+{
+ int allowed_sz = bytes;
+
+ if (likely(bytes == SLIM_REPEAT_WRITE_MAX_SLICE))
+ allowed_sz = 16;
+ else if (bytes >= 12)
+ allowed_sz = 12;
+ else if (bytes >= 8)
+ allowed_sz = 8;
+ else if (bytes >= 6)
+ allowed_sz = 6;
+ else if (bytes >= 4)
+ allowed_sz = 4;
+ else
+ allowed_sz = bytes;
+
+ return allowed_sz;
+}
+
+/*
+ * wcd9xxx_slim_write_repeat: Write the same register with multiple values
+ * @wcd9xxx: handle to wcd core
+ * @reg: register to be written
+ * @bytes: number of bytes to be written to reg
+ * @src: buffer with data content to be written to reg
+ * This API will write reg with bytes from src in a single slimbus
+ * transaction. All values from 1 to 16 are supported by this API.
+ */
+int wcd9xxx_slim_write_repeat(struct wcd9xxx *wcd9xxx, unsigned short reg,
+ int bytes, void *src)
+{
+ int ret = 0, bytes_to_write = bytes, bytes_allowed;
+ struct slim_ele_access slim_msg;
+
+ mutex_lock(&wcd9xxx->io_lock);
+ if (wcd9xxx->type == WCD9335 || wcd9xxx->type == WCD934X) {
+ ret = wcd9xxx_page_write(wcd9xxx, ®);
+ if (ret)
+ goto done;
+ }
+
+ slim_msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg;
+ slim_msg.comp = NULL;
+
+ if (unlikely(bytes > SLIM_REPEAT_WRITE_MAX_SLICE)) {
+ dev_err(wcd9xxx->dev, "%s: size %d not supported\n",
+ __func__, bytes);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (!wcd9xxx->dev_up) {
+ dev_dbg_ratelimited(
+ wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ ret = 0;
+ goto done;
+ }
+
+ while (bytes_to_write > 0) {
+ bytes_allowed = wcd9xxx_slim_get_allowed_slice(wcd9xxx,
+ bytes_to_write);
+
+ slim_msg.num_bytes = bytes_allowed;
+ mutex_lock(&wcd9xxx->xfer_lock);
+ ret = slim_user_msg(wcd9xxx->slim, wcd9xxx->slim->laddr,
+ SLIM_MSG_MT_DEST_REFERRED_USER,
+ SLIM_USR_MC_REPEAT_CHANGE_VALUE,
+ &slim_msg, src, bytes_allowed);
+ mutex_unlock(&wcd9xxx->xfer_lock);
+
+ if (ret) {
+ dev_err(wcd9xxx->dev, "%s: failed, ret = %d\n",
+ __func__, ret);
+ break;
+ }
+
+ bytes_to_write = bytes_to_write - bytes_allowed;
+ src = ((u8 *)src) + bytes_allowed;
+ }
+
+done:
+ mutex_unlock(&wcd9xxx->io_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(wcd9xxx_slim_write_repeat);
+
+/*
+ * wcd9xxx_slim_reserve_bw: API to reserve the slimbus bandwidth
+ * @wcd9xxx: Handle to the wcd9xxx core
+ * @bw_ops: value of the bandwidth that is requested
+ * @commit: Flag to indicate if bandwidth change is to be committed
+ * right away
+ */
+int wcd9xxx_slim_reserve_bw(struct wcd9xxx *wcd9xxx,
+ u32 bw_ops, bool commit)
+{
+ if (!wcd9xxx || !wcd9xxx->slim) {
+ pr_err("%s: Invalid handle to %s\n",
+ __func__,
+ (!wcd9xxx) ? "wcd9xxx" : "slim_device");
+ return -EINVAL;
+ }
+
+ return slim_reservemsg_bw(wcd9xxx->slim, bw_ops, commit);
+}
+EXPORT_SYMBOL(wcd9xxx_slim_reserve_bw);
+
+/*
+ * wcd9xxx_slim_bulk_write: API to write multiple registers with one descriptor
+ * @wcd9xxx: Handle to the wcd9xxx core
+ * @wcd9xxx_reg_val: structure holding register and values to be written
+ * @size: Indicates number of messages to be written with one descriptor
+ * @is_interface: Indicates whether the register is for slim interface or for
+ * general registers.
+ * @return: returns 0 if success or error information to the caller in case
+ * of failure.
+ */
+int wcd9xxx_slim_bulk_write(struct wcd9xxx *wcd9xxx,
+ struct wcd9xxx_reg_val *bulk_reg,
+ unsigned int size, bool is_interface)
+{
+ int ret, i;
+ struct slim_val_inf *msgs;
+ unsigned short reg;
+
+ if (!bulk_reg || !size || !wcd9xxx) {
+ pr_err("%s: Invalid parameters\n", __func__);
+ return -EINVAL;
+ }
+
+ if (!wcd9xxx->dev_up) {
+ dev_dbg_ratelimited(
+ wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ return 0;
+ }
+
+ msgs = kzalloc(size * (sizeof(struct slim_val_inf)), GFP_KERNEL);
+ if (!msgs) {
+ ret = -ENOMEM;
+ goto mem_fail;
+ }
+
+ mutex_lock(&wcd9xxx->io_lock);
+ reg = bulk_reg->reg;
+ for (i = 0; i < size; i++) {
+ msgs[i].start_offset = WCD9XXX_REGISTER_START_OFFSET +
+ (bulk_reg->reg & 0xFF);
+ msgs[i].num_bytes = bulk_reg->bytes;
+ msgs[i].wbuf = bulk_reg->buf;
+ bulk_reg++;
+ }
+ ret = wcd9xxx_page_write(wcd9xxx, ®);
+ if (ret) {
+ pr_err("%s: Page write error for reg: 0x%x\n",
+ __func__, reg);
+ goto err;
+ }
+
+ ret = slim_bulk_msg_write(is_interface ?
+ wcd9xxx->slim_slave : wcd9xxx->slim,
+ SLIM_MSG_MT_CORE,
+ SLIM_MSG_MC_CHANGE_VALUE, msgs, size,
+ NULL, NULL);
+ if (ret)
+ pr_err("%s: Error, Codec bulk write failed (%d)\n",
+ __func__, ret);
+ /* 100 usec sleep is needed as per HW requirement */
+ usleep_range(100, 110);
+err:
+ mutex_unlock(&wcd9xxx->io_lock);
+ kfree(msgs);
+mem_fail:
+ return ret;
+}
+EXPORT_SYMBOL(wcd9xxx_slim_bulk_write);
+
+static int wcd9xxx_num_irq_regs(const struct wcd9xxx *wcd9xxx)
+{
+ return (wcd9xxx->codec_type->num_irqs / 8) +
+ ((wcd9xxx->codec_type->num_irqs % 8) ? 1 : 0);
+}
+
+static int wcd9xxx_regmap_init_cache(struct wcd9xxx *wcd9xxx)
+{
+ struct regmap_config *regmap_config;
+ int rc;
+
+ regmap_config = wcd9xxx_get_regmap_config(wcd9xxx->type);
+ if (!regmap_config) {
+ dev_err(wcd9xxx->dev, "regmap config is not defined\n");
+ return -EINVAL;
+ }
+
+ rc = regmap_reinit_cache(wcd9xxx->regmap, regmap_config);
+ if (rc != 0) {
+ dev_err(wcd9xxx->dev, "%s:Failed to reinit register cache: %d\n",
+ __func__, rc);
+ }
+
+ return rc;
+}
+
+static int wcd9xxx_device_init(struct wcd9xxx *wcd9xxx)
+{
+ int ret = 0, i;
+ struct wcd9xxx_core_resource *core_res = &wcd9xxx->core_res;
+ regmap_patch_fptr regmap_apply_patch = NULL;
+
+ mutex_init(&wcd9xxx->io_lock);
+ mutex_init(&wcd9xxx->xfer_lock);
+ mutex_init(&wcd9xxx->reset_lock);
+
+ ret = wcd9xxx_bringup(wcd9xxx->dev);
+ if (ret) {
+ ret = -EPROBE_DEFER;
+ goto err_bring_up;
+ }
+
+ wcd9xxx->codec_type = devm_kzalloc(wcd9xxx->dev,
+ sizeof(struct wcd9xxx_codec_type), GFP_KERNEL);
+ if (!wcd9xxx->codec_type) {
+ ret = -ENOMEM;
+ goto err_bring_up;
+ }
+ ret = wcd9xxx_get_codec_info(wcd9xxx->dev);
+ if (ret) {
+ ret = -EPROBE_DEFER;
+ goto fail_cdc_fill;
+ }
+ wcd9xxx->version = wcd9xxx->codec_type->version;
+ if (!wcd9xxx->codec_type->dev || !wcd9xxx->codec_type->size)
+ goto fail_cdc_fill;
+
+ core_res->parent = wcd9xxx;
+ core_res->dev = wcd9xxx->dev;
+ core_res->intr_table = wcd9xxx->codec_type->intr_tbl;
+ core_res->intr_table_size = wcd9xxx->codec_type->intr_tbl_size;
+
+ for (i = 0; i < WCD9XXX_INTR_REG_MAX; i++)
+ wcd9xxx->core_res.intr_reg[i] =
+ wcd9xxx->codec_type->intr_reg[i];
+
+ wcd9xxx_core_res_init(&wcd9xxx->core_res,
+ wcd9xxx->codec_type->num_irqs,
+ wcd9xxx_num_irq_regs(wcd9xxx),
+ wcd9xxx->regmap);
+
+ if (wcd9xxx_core_irq_init(&wcd9xxx->core_res))
+ goto err;
+
+ ret = wcd9xxx_regmap_init_cache(wcd9xxx);
+ if (ret)
+ goto err_irq;
+
+ regmap_apply_patch = wcd9xxx_get_regmap_reg_patch(
+ wcd9xxx->type);
+ if (regmap_apply_patch) {
+ ret = regmap_apply_patch(wcd9xxx->regmap,
+ wcd9xxx->version);
+ if (ret)
+ dev_err(wcd9xxx->dev,
+ "Failed to register patch: %d\n", ret);
+ }
+
+ ret = mfd_add_devices(wcd9xxx->dev, -1, wcd9xxx->codec_type->dev,
+ wcd9xxx->codec_type->size, NULL, 0, NULL);
+ if (ret != 0) {
+ dev_err(wcd9xxx->dev, "Failed to add children: %d\n", ret);
+ goto err_irq;
+ }
+
+ ret = device_init_wakeup(wcd9xxx->dev, true);
+ if (ret) {
+ dev_err(wcd9xxx->dev, "Device wakeup init failed: %d\n", ret);
+ goto err_irq;
+ }
+
+ return ret;
+err_irq:
+ wcd9xxx_irq_exit(&wcd9xxx->core_res);
+fail_cdc_fill:
+ devm_kfree(wcd9xxx->dev, wcd9xxx->codec_type);
+ wcd9xxx->codec_type = NULL;
+err:
+ wcd9xxx_bringdown(wcd9xxx->dev);
+ wcd9xxx_core_res_deinit(&wcd9xxx->core_res);
+err_bring_up:
+ mutex_destroy(&wcd9xxx->io_lock);
+ mutex_destroy(&wcd9xxx->xfer_lock);
+ mutex_destroy(&wcd9xxx->reset_lock);
+ return ret;
+}
+
+static void wcd9xxx_device_exit(struct wcd9xxx *wcd9xxx)
+{
+ device_init_wakeup(wcd9xxx->dev, false);
+ wcd9xxx_irq_exit(&wcd9xxx->core_res);
+ wcd9xxx_bringdown(wcd9xxx->dev);
+ wcd9xxx_reset_low(wcd9xxx->dev);
+ wcd9xxx_core_res_deinit(&wcd9xxx->core_res);
+ mutex_destroy(&wcd9xxx->io_lock);
+ mutex_destroy(&wcd9xxx->xfer_lock);
+ mutex_destroy(&wcd9xxx->reset_lock);
+ if (wcd9xxx_get_intf_type() == WCD9XXX_INTERFACE_TYPE_SLIMBUS)
+ slim_remove_device(wcd9xxx->slim_slave);
+}
+
+
+#ifdef CONFIG_DEBUG_FS
+struct wcd9xxx *debugCodec;
+
+static struct dentry *debugfs_wcd9xxx_dent;
+static struct dentry *debugfs_peek;
+static struct dentry *debugfs_poke;
+static struct dentry *debugfs_power_state;
+static struct dentry *debugfs_reg_dump;
+
+static unsigned char read_data;
+
+static int codec_debug_open(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static int get_parameters(char *buf, long int *param1, int num_of_par)
+{
+ char *token;
+ int base, cnt;
+
+ token = strsep(&buf, " ");
+
+ for (cnt = 0; cnt < num_of_par; cnt++) {
+ if (token != NULL) {
+ if ((token[1] == 'x') || (token[1] == 'X'))
+ base = 16;
+ else
+ base = 10;
+
+ if (kstrtoul(token, base, ¶m1[cnt]) != 0)
+ return -EINVAL;
+
+ token = strsep(&buf, " ");
+ } else
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static ssize_t wcd9xxx_slimslave_reg_show(char __user *ubuf, size_t count,
+ loff_t *ppos)
+{
+ int i, reg_val, len;
+ ssize_t total = 0;
+ char tmp_buf[25]; /* each line is 12 bytes but 25 for margin of error */
+
+ for (i = (int) *ppos / 12; i <= SLIM_MAX_REG_ADDR; i++) {
+ reg_val = wcd9xxx_interface_reg_read(debugCodec, i);
+ len = snprintf(tmp_buf, sizeof(tmp_buf),
+ "0x%.3x: 0x%.2x\n", i, reg_val);
+
+ if ((total + len) >= count - 1)
+ break;
+ if (copy_to_user((ubuf + total), tmp_buf, len)) {
+ pr_err("%s: fail to copy reg dump\n", __func__);
+ total = -EFAULT;
+ goto copy_err;
+ }
+ *ppos += len;
+ total += len;
+ }
+
+copy_err:
+ return total;
+}
+
+static ssize_t codec_debug_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ char lbuf[8];
+ char *access_str = file->private_data;
+ ssize_t ret_cnt;
+
+ if (*ppos < 0 || !count)
+ return -EINVAL;
+
+ if (!strcmp(access_str, "slimslave_peek")) {
+ snprintf(lbuf, sizeof(lbuf), "0x%x\n", read_data);
+ ret_cnt = simple_read_from_buffer(ubuf, count, ppos, lbuf,
+ strnlen(lbuf, 7));
+ } else if (!strcmp(access_str, "slimslave_reg_dump")) {
+ ret_cnt = wcd9xxx_slimslave_reg_show(ubuf, count, ppos);
+ } else {
+ pr_err("%s: %s not permitted to read\n", __func__, access_str);
+ ret_cnt = -EPERM;
+ }
+
+ return ret_cnt;
+}
+
+static void wcd9xxx_set_reset_pin_state(struct wcd9xxx *wcd9xxx,
+ struct wcd9xxx_pdata *pdata,
+ bool active)
+{
+ if (wcd9xxx->wcd_rst_np) {
+ if (active)
+ msm_cdc_pinctrl_select_active_state(
+ wcd9xxx->wcd_rst_np);
+ else
+ msm_cdc_pinctrl_select_sleep_state(
+ wcd9xxx->wcd_rst_np);
+
+ return;
+ } else if (gpio_is_valid(wcd9xxx->reset_gpio)) {
+ gpio_direction_output(wcd9xxx->reset_gpio,
+ (active == true ? 1 : 0));
+ }
+}
+
+static int codec_debug_process_cdc_power(char *lbuf)
+{
+ long int param;
+ int rc;
+ struct wcd9xxx_pdata *pdata;
+
+ if (wcd9xxx_get_intf_type() != WCD9XXX_INTERFACE_TYPE_SLIMBUS) {
+ pr_err("%s: CODEC is not in SLIMBUS mode\n", __func__);
+ rc = -EPERM;
+ goto error_intf;
+ }
+
+ rc = get_parameters(lbuf, ¶m, 1);
+
+ if (likely(!rc)) {
+ pdata = debugCodec->slim->dev.platform_data;
+ if (param == 0) {
+ wcd9xxx_slim_device_down(debugCodec->slim);
+ msm_cdc_disable_static_supplies(debugCodec->dev,
+ debugCodec->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ wcd9xxx_set_reset_pin_state(debugCodec, pdata, false);
+ } else if (param == 1) {
+ msm_cdc_enable_static_supplies(debugCodec->dev,
+ debugCodec->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ usleep_range(1000, 2000);
+ wcd9xxx_set_reset_pin_state(debugCodec, pdata, false);
+ usleep_range(1000, 2000);
+ wcd9xxx_set_reset_pin_state(debugCodec, pdata, true);
+ usleep_range(1000, 2000);
+ wcd9xxx_slim_device_up(debugCodec->slim);
+ } else {
+ pr_err("%s: invalid command %ld\n", __func__, param);
+ }
+ }
+
+error_intf:
+ return rc;
+}
+
+static ssize_t codec_debug_write(struct file *filp,
+ const char __user *ubuf, size_t cnt, loff_t *ppos)
+{
+ char *access_str = filp->private_data;
+ char lbuf[32];
+ int rc;
+ long int param[5];
+
+ if (cnt > sizeof(lbuf) - 1)
+ return -EINVAL;
+
+ rc = copy_from_user(lbuf, ubuf, cnt);
+ if (rc)
+ return -EFAULT;
+
+ lbuf[cnt] = '\0';
+
+ if (!strcmp(access_str, "slimslave_poke")) {
+ /* write */
+ rc = get_parameters(lbuf, param, 2);
+ if ((param[0] <= 0x3FF) && (param[1] <= 0xFF) &&
+ (rc == 0))
+ wcd9xxx_interface_reg_write(debugCodec, param[0],
+ param[1]);
+ else
+ rc = -EINVAL;
+ } else if (!strcmp(access_str, "slimslave_peek")) {
+ /* read */
+ rc = get_parameters(lbuf, param, 1);
+ if ((param[0] <= 0x3FF) && (rc == 0))
+ read_data = wcd9xxx_interface_reg_read(debugCodec,
+ param[0]);
+ else
+ rc = -EINVAL;
+ } else if (!strcmp(access_str, "power_state")) {
+ rc = codec_debug_process_cdc_power(lbuf);
+ }
+
+ if (rc == 0)
+ rc = cnt;
+ else
+ pr_err("%s: rc = %d\n", __func__, rc);
+
+ return rc;
+}
+
+static const struct file_operations codec_debug_ops = {
+ .open = codec_debug_open,
+ .write = codec_debug_write,
+ .read = codec_debug_read
+};
+#endif
+
+static struct wcd9xxx_i2c *wcd9xxx_i2c_get_device_info(struct wcd9xxx *wcd9xxx,
+ u16 reg)
+{
+ u16 mask = 0x0f00;
+ int value = 0;
+ struct wcd9xxx_i2c *wcd9xxx_i2c = NULL;
+
+ if (wcd9xxx->type == WCD9335) {
+ wcd9xxx_i2c = &wcd9xxx_modules[0];
+ } else {
+ value = ((reg & mask) >> 8) & 0x000f;
+ switch (value) {
+ case 0:
+ wcd9xxx_i2c = &wcd9xxx_modules[0];
+ break;
+ case 1:
+ wcd9xxx_i2c = &wcd9xxx_modules[1];
+ break;
+ case 2:
+ wcd9xxx_i2c = &wcd9xxx_modules[2];
+ break;
+ case 3:
+ wcd9xxx_i2c = &wcd9xxx_modules[3];
+ break;
+
+ default:
+ break;
+ }
+ }
+ return wcd9xxx_i2c;
+}
+
+static int wcd9xxx_i2c_write_device(struct wcd9xxx *wcd9xxx, u16 reg, u8 *value,
+ u32 bytes)
+{
+
+ struct i2c_msg *msg;
+ int ret = 0;
+ u8 reg_addr = 0;
+ u8 data[bytes + 1];
+ struct wcd9xxx_i2c *wcd9xxx_i2c;
+
+ wcd9xxx_i2c = wcd9xxx_i2c_get_device_info(wcd9xxx, reg);
+ if (wcd9xxx_i2c == NULL || wcd9xxx_i2c->client == NULL) {
+ pr_err("failed to get device info\n");
+ return -ENODEV;
+ }
+ reg_addr = (u8)reg;
+ msg = &wcd9xxx_i2c->xfer_msg[0];
+ msg->addr = wcd9xxx_i2c->client->addr;
+ msg->len = bytes + 1;
+ msg->flags = 0;
+ data[0] = reg;
+ data[1] = *value;
+ msg->buf = data;
+ ret = i2c_transfer(wcd9xxx_i2c->client->adapter,
+ wcd9xxx_i2c->xfer_msg, 1);
+ /* Try again if the write fails */
+ if (ret != 1) {
+ ret = i2c_transfer(wcd9xxx_i2c->client->adapter,
+ wcd9xxx_i2c->xfer_msg, 1);
+ if (ret != 1) {
+ pr_err("failed to write the device\n");
+ return ret;
+ }
+ }
+ pr_debug("write success register = %x val = %x\n", reg, data[1]);
+ return 0;
+}
+
+
+static int wcd9xxx_i2c_read_device(struct wcd9xxx *wcd9xxx, unsigned short reg,
+ int bytes, unsigned char *dest)
+{
+ struct i2c_msg *msg;
+ int ret = 0;
+ u8 reg_addr = 0;
+ struct wcd9xxx_i2c *wcd9xxx_i2c;
+ u8 i = 0;
+
+ wcd9xxx_i2c = wcd9xxx_i2c_get_device_info(wcd9xxx, reg);
+ if (wcd9xxx_i2c == NULL || wcd9xxx_i2c->client == NULL) {
+ pr_err("failed to get device info\n");
+ return -ENODEV;
+ }
+ for (i = 0; i < bytes; i++) {
+ reg_addr = (u8)reg++;
+ msg = &wcd9xxx_i2c->xfer_msg[0];
+ msg->addr = wcd9xxx_i2c->client->addr;
+ msg->len = 1;
+ msg->flags = 0;
+ msg->buf = ®_addr;
+
+ msg = &wcd9xxx_i2c->xfer_msg[1];
+ msg->addr = wcd9xxx_i2c->client->addr;
+ msg->len = 1;
+ msg->flags = I2C_M_RD;
+ msg->buf = dest++;
+ ret = i2c_transfer(wcd9xxx_i2c->client->adapter,
+ wcd9xxx_i2c->xfer_msg, 2);
+
+ /* Try again if read fails first time */
+ if (ret != 2) {
+ ret = i2c_transfer(wcd9xxx_i2c->client->adapter,
+ wcd9xxx_i2c->xfer_msg, 2);
+ if (ret != 2) {
+ pr_err("failed to read wcd9xxx register\n");
+ return ret;
+ }
+ }
+ }
+ return 0;
+}
+
+int wcd9xxx_i2c_read(struct wcd9xxx *wcd9xxx, unsigned short reg,
+ int bytes, void *dest, bool interface_reg)
+{
+ return wcd9xxx_i2c_read_device(wcd9xxx, reg, bytes, dest);
+}
+
+int wcd9xxx_i2c_write(struct wcd9xxx *wcd9xxx, unsigned short reg,
+ int bytes, void *src, bool interface_reg)
+{
+ return wcd9xxx_i2c_write_device(wcd9xxx, reg, src, bytes);
+}
+
+static int wcd9xxx_i2c_get_client_index(struct i2c_client *client,
+ int *wcd9xx_index)
+{
+ int ret = 0;
+
+ switch (client->addr) {
+ case WCD9XXX_I2C_TOP_SLAVE_ADDR:
+ *wcd9xx_index = WCD9XXX_I2C_TOP_LEVEL;
+ break;
+ case WCD9XXX_ANALOG_I2C_SLAVE_ADDR:
+ *wcd9xx_index = WCD9XXX_I2C_ANALOG;
+ break;
+ case WCD9XXX_DIGITAL1_I2C_SLAVE_ADDR:
+ *wcd9xx_index = WCD9XXX_I2C_DIGITAL_1;
+ break;
+ case WCD9XXX_DIGITAL2_I2C_SLAVE_ADDR:
+ *wcd9xx_index = WCD9XXX_I2C_DIGITAL_2;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int wcd9xxx_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct wcd9xxx *wcd9xxx = NULL;
+ struct wcd9xxx_pdata *pdata = NULL;
+ int val = 0;
+ int ret = 0;
+ int wcd9xx_index = 0;
+ struct device *dev;
+ int intf_type;
+ const struct of_device_id *of_id;
+
+ intf_type = wcd9xxx_get_intf_type();
+
+ pr_debug("%s: interface status %d\n", __func__, intf_type);
+ if (intf_type == WCD9XXX_INTERFACE_TYPE_SLIMBUS) {
+ dev_dbg(&client->dev, "%s:Codec is detected in slimbus mode\n",
+ __func__);
+ return -ENODEV;
+ } else if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) {
+ ret = wcd9xxx_i2c_get_client_index(client, &wcd9xx_index);
+ if (ret != 0)
+ dev_err(&client->dev, "%s: I2C set codec I2C\n"
+ "client failed\n", __func__);
+ else {
+ dev_err(&client->dev, "%s:probe for other slaves\n"
+ "devices of codec I2C slave Addr = %x\n",
+ __func__, client->addr);
+ wcd9xxx_modules[wcd9xx_index].client = client;
+ }
+ return ret;
+ } else if (intf_type == WCD9XXX_INTERFACE_TYPE_PROBING) {
+ dev = &client->dev;
+ if (client->dev.of_node) {
+ dev_dbg(&client->dev, "%s:Platform data\n"
+ "from device tree\n", __func__);
+ pdata = wcd9xxx_populate_dt_data(&client->dev);
+ if (!pdata) {
+ dev_err(&client->dev,
+ "%s: Fail to obtain pdata from device tree\n",
+ __func__);
+ ret = -EINVAL;
+ goto fail;
+ }
+ client->dev.platform_data = pdata;
+ } else {
+ dev_dbg(&client->dev, "%s:Platform data from\n"
+ "board file\n", __func__);
+ pdata = client->dev.platform_data;
+ }
+ wcd9xxx = devm_kzalloc(&client->dev, sizeof(struct wcd9xxx),
+ GFP_KERNEL);
+ if (!wcd9xxx) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ if (!pdata) {
+ dev_dbg(&client->dev, "no platform data?\n");
+ ret = -EINVAL;
+ goto fail;
+ }
+ wcd9xxx->type = WCD9XXX;
+ if (client->dev.of_node) {
+ of_id = of_match_device(wcd9xxx_of_match, &client->dev);
+ if (of_id) {
+ wcd9xxx->type = *((int *)of_id->data);
+ dev_info(&client->dev, "%s: codec type is %d\n",
+ __func__, wcd9xxx->type);
+ }
+ } else {
+ dev_info(&client->dev, "%s: dev.of_node is NULL, default to WCD9XXX\n",
+ __func__);
+ wcd9xxx->type = WCD9XXX;
+ }
+ wcd9xxx->regmap = wcd9xxx_regmap_init(&client->dev,
+ &wcd9xxx_i2c_base_regmap_config);
+ if (IS_ERR(wcd9xxx->regmap)) {
+ ret = PTR_ERR(wcd9xxx->regmap);
+ dev_err(&client->dev, "%s: Failed to allocate register map: %d\n",
+ __func__, ret);
+ goto err_codec;
+ }
+ wcd9xxx->reset_gpio = pdata->reset_gpio;
+ wcd9xxx->wcd_rst_np = pdata->wcd_rst_np;
+
+ if (!wcd9xxx->wcd_rst_np) {
+ pdata->use_pinctrl = false;
+ dev_err(&client->dev, "%s: pinctrl not used for rst_n\n",
+ __func__);
+ goto err_codec;
+ }
+
+ if (i2c_check_functionality(client->adapter,
+ I2C_FUNC_I2C) == 0) {
+ dev_dbg(&client->dev, "can't talk I2C?\n");
+ ret = -EIO;
+ goto fail;
+ }
+ dev_set_drvdata(&client->dev, wcd9xxx);
+ wcd9xxx->dev = &client->dev;
+ wcd9xxx->dev_up = true;
+ if (client->dev.of_node)
+ wcd9xxx->mclk_rate = pdata->mclk_rate;
+
+ wcd9xxx->num_of_supplies = pdata->num_supplies;
+ ret = msm_cdc_init_supplies(wcd9xxx->dev, &wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ if (!wcd9xxx->supplies) {
+ dev_err(wcd9xxx->dev, "%s: Cannot init wcd supplies\n",
+ __func__);
+ goto err_codec;
+ }
+ ret = msm_cdc_enable_static_supplies(wcd9xxx->dev,
+ wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ if (ret) {
+ dev_err(wcd9xxx->dev, "%s: wcd static supply enable failed!\n",
+ __func__);
+ goto err_codec;
+ }
+ /* For WCD9335, it takes about 600us for the Vout_A and
+ * Vout_D to be ready after BUCK_SIDO is powered up\
+ * SYS_RST_N shouldn't be pulled high during this time
+ */
+ if (wcd9xxx->type == WCD9335)
+ usleep_range(600, 650);
+ else
+ usleep_range(5, 10);
+
+ ret = wcd9xxx_reset(wcd9xxx->dev);
+ if (ret) {
+ pr_err("%s: Resetting Codec failed\n", __func__);
+ goto err_supplies;
+ }
+
+ ret = wcd9xxx_i2c_get_client_index(client, &wcd9xx_index);
+ if (ret != 0) {
+ pr_err("%s:Set codec I2C client failed\n", __func__);
+ goto err_supplies;
+ }
+
+ wcd9xxx_modules[wcd9xx_index].client = client;
+ wcd9xxx->read_dev = wcd9xxx_i2c_read;
+ wcd9xxx->write_dev = wcd9xxx_i2c_write;
+ if (!wcd9xxx->dev->of_node)
+ wcd9xxx_assign_irq(&wcd9xxx->core_res,
+ pdata->irq, pdata->irq_base);
+
+ ret = wcd9xxx_device_init(wcd9xxx);
+ if (ret) {
+ pr_err("%s: error, initializing device failed (%d)\n",
+ __func__, ret);
+ goto err_device_init;
+ }
+
+ ret = wcd9xxx_i2c_read(wcd9xxx, WCD9XXX_A_CHIP_STATUS, 1,
+ &val, 0);
+ if (ret < 0)
+ pr_err("%s: failed to read the wcd9xxx status (%d)\n",
+ __func__, ret);
+ if (val != wcd9xxx->codec_type->i2c_chip_status)
+ pr_err("%s: unknown chip status 0x%x\n", __func__, val);
+
+ wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_I2C);
+
+ return ret;
+ }
+
+ pr_err("%s: I2C probe in wrong state\n", __func__);
+
+
+err_device_init:
+ wcd9xxx_reset_low(wcd9xxx->dev);
+err_supplies:
+ msm_cdc_release_supplies(wcd9xxx->dev, wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ pdata->regulator = NULL;
+ pdata->num_supplies = 0;
+err_codec:
+ devm_kfree(&client->dev, wcd9xxx);
+ dev_set_drvdata(&client->dev, NULL);
+fail:
+ return ret;
+}
+
+static int wcd9xxx_i2c_remove(struct i2c_client *client)
+{
+ struct wcd9xxx *wcd9xxx;
+ struct wcd9xxx_pdata *pdata = client->dev.platform_data;
+
+ wcd9xxx = dev_get_drvdata(&client->dev);
+ msm_cdc_release_supplies(wcd9xxx->dev, wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ wcd9xxx_device_exit(wcd9xxx);
+ dev_set_drvdata(&client->dev, NULL);
+ return 0;
+}
+
+static int wcd9xxx_dt_parse_slim_interface_dev_info(struct device *dev,
+ struct slim_device *slim_ifd)
+{
+ int ret = 0;
+ struct property *prop;
+
+ ret = of_property_read_string(dev->of_node, "qcom,cdc-slim-ifd",
+ &slim_ifd->name);
+ if (ret) {
+ dev_err(dev, "Looking up %s property in node %s failed",
+ "qcom,cdc-slim-ifd-dev", dev->of_node->full_name);
+ return -ENODEV;
+ }
+ prop = of_find_property(dev->of_node,
+ "qcom,cdc-slim-ifd-elemental-addr", NULL);
+ if (!prop) {
+ dev_err(dev, "Looking up %s property in node %s failed",
+ "qcom,cdc-slim-ifd-elemental-addr",
+ dev->of_node->full_name);
+ return -ENODEV;
+ } else if (prop->length != 6) {
+ dev_err(dev, "invalid codec slim ifd addr. addr length = %d\n",
+ prop->length);
+ return -ENODEV;
+ }
+ memcpy(slim_ifd->e_addr, prop->value, 6);
+
+ return 0;
+}
+
+static int wcd9xxx_slim_get_laddr(struct slim_device *sb,
+ const u8 *e_addr, u8 e_len, u8 *laddr)
+{
+ int ret;
+ const unsigned long timeout = jiffies +
+ msecs_to_jiffies(SLIMBUS_PRESENT_TIMEOUT);
+
+ do {
+ ret = slim_get_logical_addr(sb, e_addr, e_len, laddr);
+ if (!ret)
+ break;
+ /* Give SLIMBUS time to report present and be ready. */
+ usleep_range(1000, 1100);
+ pr_debug_ratelimited("%s: retyring get logical addr\n",
+ __func__);
+ } while time_before(jiffies, timeout);
+
+ return ret;
+}
+
+static int wcd9xxx_slim_probe(struct slim_device *slim)
+{
+ struct wcd9xxx *wcd9xxx;
+ struct wcd9xxx_pdata *pdata;
+ const struct slim_device_id *device_id;
+ int ret = 0;
+ int intf_type;
+
+ intf_type = wcd9xxx_get_intf_type();
+
+ wcd9xxx = devm_kzalloc(&slim->dev, sizeof(struct wcd9xxx),
+ GFP_KERNEL);
+ if (!wcd9xxx) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ if (!slim) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) {
+ dev_dbg(&slim->dev, "%s:Codec is detected in I2C mode\n",
+ __func__);
+ ret = -ENODEV;
+ goto err;
+ }
+ if (slim->dev.of_node) {
+ dev_info(&slim->dev, "Platform data from device tree\n");
+ pdata = wcd9xxx_populate_dt_data(&slim->dev);
+ if (!pdata) {
+ dev_err(&slim->dev,
+ "%s: Fail to obtain pdata from device tree\n",
+ __func__);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = wcd9xxx_dt_parse_slim_interface_dev_info(&slim->dev,
+ &pdata->slimbus_slave_device);
+ if (ret) {
+ dev_err(&slim->dev, "Error, parsing slim interface\n");
+ devm_kfree(&slim->dev, pdata);
+ ret = -EINVAL;
+ goto err;
+ }
+ slim->dev.platform_data = pdata;
+
+ } else {
+ dev_info(&slim->dev, "Platform data from board file\n");
+ pdata = slim->dev.platform_data;
+ }
+
+ if (!pdata) {
+ dev_err(&slim->dev, "Error, no platform data\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (!slim->ctrl) {
+ dev_err(&slim->dev, "%s: Error, no SLIMBUS control data\n",
+ __func__);
+ ret = -EINVAL;
+ goto err_codec;
+ }
+ device_id = slim_get_device_id(slim);
+ if (!device_id) {
+ dev_err(&slim->dev, "%s: Error, no device id\n", __func__);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ wcd9xxx->type = device_id->driver_data;
+ dev_info(&slim->dev, "%s: probing for wcd type: %d, name: %s\n",
+ __func__, wcd9xxx->type, device_id->name);
+
+ /* wcd9xxx members init */
+ wcd9xxx->multi_reg_write = wcd9xxx_slim_multi_reg_write;
+ wcd9xxx->slim = slim;
+ slim_set_clientdata(slim, wcd9xxx);
+ wcd9xxx->reset_gpio = pdata->reset_gpio;
+ wcd9xxx->dev = &slim->dev;
+ wcd9xxx->mclk_rate = pdata->mclk_rate;
+ wcd9xxx->dev_up = true;
+ wcd9xxx->wcd_rst_np = pdata->wcd_rst_np;
+
+ wcd9xxx->regmap = wcd9xxx_regmap_init(&slim->dev,
+ &wcd9xxx_base_regmap_config);
+ if (IS_ERR(wcd9xxx->regmap)) {
+ ret = PTR_ERR(wcd9xxx->regmap);
+ dev_err(&slim->dev, "%s: Failed to allocate register map: %d\n",
+ __func__, ret);
+ goto err_codec;
+ }
+
+ if (!wcd9xxx->wcd_rst_np) {
+ pdata->use_pinctrl = false;
+ dev_err(&slim->dev, "%s: pinctrl not used for rst_n\n",
+ __func__);
+ goto err_codec;
+ }
+
+ wcd9xxx->num_of_supplies = pdata->num_supplies;
+ ret = msm_cdc_init_supplies(&slim->dev, &wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ if (!wcd9xxx->supplies) {
+ dev_err(wcd9xxx->dev, "%s: Cannot init wcd supplies\n",
+ __func__);
+ goto err_codec;
+ }
+ ret = msm_cdc_enable_static_supplies(wcd9xxx->dev,
+ wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ if (ret) {
+ dev_err(wcd9xxx->dev, "%s: wcd static supply enable failed!\n",
+ __func__);
+ goto err_codec;
+ }
+
+ /*
+ * For WCD9335, it takes about 600us for the Vout_A and
+ * Vout_D to be ready after BUCK_SIDO is powered up.
+ * SYS_RST_N shouldn't be pulled high during this time
+ */
+ if (wcd9xxx->type == WCD9335 || wcd9xxx->type == WCD934X)
+ usleep_range(600, 650);
+ else
+ usleep_range(5, 10);
+
+ ret = wcd9xxx_reset(&slim->dev);
+ if (ret) {
+ dev_err(&slim->dev, "%s: Resetting Codec failed\n", __func__);
+ goto err_supplies;
+ }
+
+ ret = wcd9xxx_slim_get_laddr(wcd9xxx->slim, wcd9xxx->slim->e_addr,
+ ARRAY_SIZE(wcd9xxx->slim->e_addr),
+ &wcd9xxx->slim->laddr);
+ if (ret) {
+ dev_err(&slim->dev, "%s: failed to get slimbus %s logical address: %d\n",
+ __func__, wcd9xxx->slim->name, ret);
+ goto err_reset;
+ }
+ wcd9xxx->read_dev = wcd9xxx_slim_read_device;
+ wcd9xxx->write_dev = wcd9xxx_slim_write_device;
+ wcd9xxx_pgd_la = wcd9xxx->slim->laddr;
+ wcd9xxx->slim_slave = &pdata->slimbus_slave_device;
+ if (!wcd9xxx->dev->of_node)
+ wcd9xxx_assign_irq(&wcd9xxx->core_res,
+ pdata->irq, pdata->irq_base);
+
+ ret = slim_add_device(slim->ctrl, wcd9xxx->slim_slave);
+ if (ret) {
+ dev_err(&slim->dev, "%s: error, adding SLIMBUS device failed\n",
+ __func__);
+ goto err_reset;
+ }
+
+ ret = wcd9xxx_slim_get_laddr(wcd9xxx->slim_slave,
+ wcd9xxx->slim_slave->e_addr,
+ ARRAY_SIZE(wcd9xxx->slim_slave->e_addr),
+ &wcd9xxx->slim_slave->laddr);
+ if (ret) {
+ dev_err(&slim->dev, "%s: failed to get slimbus %s logical address: %d\n",
+ __func__, wcd9xxx->slim->name, ret);
+ goto err_slim_add;
+ }
+ wcd9xxx_inf_la = wcd9xxx->slim_slave->laddr;
+ wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_SLIMBUS);
+
+ ret = wcd9xxx_device_init(wcd9xxx);
+ if (ret) {
+ dev_err(&slim->dev, "%s: error, initializing device failed (%d)\n",
+ __func__, ret);
+ goto err_slim_add;
+ }
+#ifdef CONFIG_DEBUG_FS
+ debugCodec = wcd9xxx;
+
+ debugfs_wcd9xxx_dent = debugfs_create_dir
+ ("wcd9xxx_core", 0);
+ if (!IS_ERR(debugfs_wcd9xxx_dent)) {
+ debugfs_peek = debugfs_create_file("slimslave_peek",
+ S_IFREG | 0444, debugfs_wcd9xxx_dent,
+ (void *) "slimslave_peek", &codec_debug_ops);
+
+ debugfs_poke = debugfs_create_file("slimslave_poke",
+ S_IFREG | 0444, debugfs_wcd9xxx_dent,
+ (void *) "slimslave_poke", &codec_debug_ops);
+
+ debugfs_power_state = debugfs_create_file("power_state",
+ S_IFREG | 0444, debugfs_wcd9xxx_dent,
+ (void *) "power_state", &codec_debug_ops);
+
+ debugfs_reg_dump = debugfs_create_file("slimslave_reg_dump",
+ S_IFREG | 0444, debugfs_wcd9xxx_dent,
+ (void *) "slimslave_reg_dump", &codec_debug_ops);
+ }
+#endif
+
+ return ret;
+
+err_slim_add:
+ slim_remove_device(wcd9xxx->slim_slave);
+err_reset:
+ wcd9xxx_reset_low(wcd9xxx->dev);
+err_supplies:
+ msm_cdc_release_supplies(wcd9xxx->dev, wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+err_codec:
+ slim_set_clientdata(slim, NULL);
+err:
+ devm_kfree(&slim->dev, wcd9xxx);
+ return ret;
+}
+static int wcd9xxx_slim_remove(struct slim_device *pdev)
+{
+ struct wcd9xxx *wcd9xxx;
+ struct wcd9xxx_pdata *pdata = pdev->dev.platform_data;
+
+#ifdef CONFIG_DEBUG_FS
+ debugfs_remove_recursive(debugfs_wcd9xxx_dent);
+#endif
+ wcd9xxx = slim_get_devicedata(pdev);
+ wcd9xxx_deinit_slimslave(wcd9xxx);
+ slim_remove_device(wcd9xxx->slim_slave);
+ msm_cdc_release_supplies(wcd9xxx->dev, wcd9xxx->supplies,
+ pdata->regulator,
+ pdata->num_supplies);
+ wcd9xxx_device_exit(wcd9xxx);
+ slim_set_clientdata(pdev, NULL);
+ return 0;
+}
+
+static int wcd9xxx_device_up(struct wcd9xxx *wcd9xxx)
+{
+ int ret = 0;
+ struct wcd9xxx_core_resource *wcd9xxx_res = &wcd9xxx->core_res;
+
+ dev_info(wcd9xxx->dev, "%s: codec bring up\n", __func__);
+ wcd9xxx_bringup(wcd9xxx->dev);
+ ret = wcd9xxx_irq_init(wcd9xxx_res);
+ if (ret) {
+ pr_err("%s: wcd9xx_irq_init failed : %d\n", __func__, ret);
+ } else {
+ if (wcd9xxx->post_reset)
+ ret = wcd9xxx->post_reset(wcd9xxx);
+ }
+ return ret;
+}
+
+static int wcd9xxx_slim_device_reset(struct slim_device *sldev)
+{
+ int ret;
+ struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
+
+ if (!wcd9xxx) {
+ pr_err("%s: wcd9xxx is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ dev_info(wcd9xxx->dev, "%s: device reset, dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ if (wcd9xxx->dev_up)
+ return 0;
+
+ mutex_lock(&wcd9xxx->reset_lock);
+ ret = wcd9xxx_reset(wcd9xxx->dev);
+ if (ret)
+ dev_err(wcd9xxx->dev, "%s: Resetting Codec failed\n", __func__);
+ mutex_unlock(&wcd9xxx->reset_lock);
+
+ return ret;
+}
+
+static int wcd9xxx_slim_device_up(struct slim_device *sldev)
+{
+ struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
+ int ret = 0;
+
+ if (!wcd9xxx) {
+ pr_err("%s: wcd9xxx is NULL\n", __func__);
+ return -EINVAL;
+ }
+ dev_info(wcd9xxx->dev, "%s: slim device up, dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ if (wcd9xxx->dev_up)
+ return 0;
+
+ wcd9xxx->dev_up = true;
+
+ mutex_lock(&wcd9xxx->reset_lock);
+ ret = wcd9xxx_device_up(wcd9xxx);
+ mutex_unlock(&wcd9xxx->reset_lock);
+
+ return ret;
+}
+
+static int wcd9xxx_slim_device_down(struct slim_device *sldev)
+{
+ struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
+
+ if (!wcd9xxx) {
+ pr_err("%s: wcd9xxx is NULL\n", __func__);
+ return -EINVAL;
+ }
+
+ dev_info(wcd9xxx->dev, "%s: device down, dev_up = %d\n",
+ __func__, wcd9xxx->dev_up);
+ if (!wcd9xxx->dev_up)
+ return 0;
+
+ wcd9xxx->dev_up = false;
+
+ mutex_lock(&wcd9xxx->reset_lock);
+ if (wcd9xxx->dev_down)
+ wcd9xxx->dev_down(wcd9xxx);
+ wcd9xxx_irq_exit(&wcd9xxx->core_res);
+ wcd9xxx_reset_low(wcd9xxx->dev);
+ mutex_unlock(&wcd9xxx->reset_lock);
+
+ return 0;
+}
+
+static int wcd9xxx_slim_resume(struct slim_device *sldev)
+{
+ struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
+
+ return wcd9xxx_core_res_resume(&wcd9xxx->core_res);
+}
+
+static int wcd9xxx_i2c_resume(struct device *dev)
+{
+ struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev);
+
+ if (wcd9xxx)
+ return wcd9xxx_core_res_resume(&wcd9xxx->core_res);
+ else
+ return 0;
+}
+
+static int wcd9xxx_slim_suspend(struct slim_device *sldev, pm_message_t pmesg)
+{
+ struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
+
+ return wcd9xxx_core_res_suspend(&wcd9xxx->core_res, pmesg);
+}
+
+static int wcd9xxx_i2c_suspend(struct device *dev)
+{
+ struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev);
+ pm_message_t pmesg = {0};
+
+ if (wcd9xxx)
+ return wcd9xxx_core_res_suspend(&wcd9xxx->core_res, pmesg);
+ else
+ return 0;
+}
+
+static const struct slim_device_id wcd_slim_device_id[] = {
+ {"sitar-slim", 0},
+ {"sitar1p1-slim", 0},
+ {"tabla-slim", 0},
+ {"tabla2x-slim", 0},
+ {"taiko-slim-pgd", 0},
+ {"tapan-slim-pgd", 0},
+ {"tomtom-slim-pgd", WCD9330},
+ {"tasha-slim-pgd", WCD9335},
+ {"tavil-slim-pgd", WCD934X},
+ {}
+};
+
+static struct slim_driver wcd_slim_driver = {
+ .driver = {
+ .name = "wcd-slim",
+ .owner = THIS_MODULE,
+ },
+ .probe = wcd9xxx_slim_probe,
+ .remove = wcd9xxx_slim_remove,
+ .id_table = wcd_slim_device_id,
+ .resume = wcd9xxx_slim_resume,
+ .suspend = wcd9xxx_slim_suspend,
+ .device_up = wcd9xxx_slim_device_up,
+ .reset_device = wcd9xxx_slim_device_reset,
+ .device_down = wcd9xxx_slim_device_down,
+};
+
+static struct i2c_device_id wcd9xxx_id_table[] = {
+ {"wcd9xxx-i2c", WCD9XXX_I2C_TOP_LEVEL},
+ {"wcd9xxx-i2c", WCD9XXX_I2C_ANALOG},
+ {"wcd9xxx-i2c", WCD9XXX_I2C_DIGITAL_1},
+ {"wcd9xxx-i2c", WCD9XXX_I2C_DIGITAL_2},
+ {}
+};
+
+static struct i2c_device_id tasha_id_table[] = {
+ {"tasha-i2c-pgd", WCD9XXX_I2C_TOP_LEVEL},
+ {}
+};
+
+static struct i2c_device_id tabla_id_table[] = {
+ {"tabla top level", WCD9XXX_I2C_TOP_LEVEL},
+ {"tabla analog", WCD9XXX_I2C_ANALOG},
+ {"tabla digital1", WCD9XXX_I2C_DIGITAL_1},
+ {"tabla digital2", WCD9XXX_I2C_DIGITAL_2},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tabla_id_table);
+
+static const struct dev_pm_ops wcd9xxx_i2c_pm_ops = {
+ .suspend = wcd9xxx_i2c_suspend,
+ .resume = wcd9xxx_i2c_resume,
+};
+
+static struct i2c_driver tabla_i2c_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "tabla-i2c-core",
+ .pm = &wcd9xxx_i2c_pm_ops,
+ },
+ .id_table = tabla_id_table,
+ .probe = wcd9xxx_i2c_probe,
+ .remove = wcd9xxx_i2c_remove,
+};
+
+static struct i2c_driver wcd9xxx_i2c_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "wcd9xxx-i2c-core",
+ .pm = &wcd9xxx_i2c_pm_ops,
+ },
+ .id_table = wcd9xxx_id_table,
+ .probe = wcd9xxx_i2c_probe,
+ .remove = wcd9xxx_i2c_remove,
+};
+
+static struct i2c_driver wcd9335_i2c_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "tasha-i2c-core",
+ .pm = &wcd9xxx_i2c_pm_ops,
+ },
+ .id_table = tasha_id_table,
+ .probe = wcd9xxx_i2c_probe,
+ .remove = wcd9xxx_i2c_remove,
+};
+
+int wcd9xxx_init(void)
+{
+ int ret[NUM_WCD9XXX_REG_RET] = {0};
+ int i = 0;
+
+ wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_PROBING);
+
+ ret[0] = i2c_add_driver(&tabla_i2c_driver);
+ if (ret[0])
+ pr_err("%s: Failed to add the tabla2x I2C driver: %d\n",
+ __func__, ret[0]);
+
+ ret[1] = i2c_add_driver(&wcd9xxx_i2c_driver);
+ if (ret[1])
+ pr_err("%s: Failed to add the wcd9xxx I2C driver: %d\n",
+ __func__, ret[1]);
+
+ ret[2] = i2c_add_driver(&wcd9335_i2c_driver);
+ if (ret[2])
+ pr_err("%s: Failed to add the wcd9335 I2C driver: %d\n",
+ __func__, ret[2]);
+
+ ret[3] = slim_driver_register(&wcd_slim_driver);
+ if (ret[3])
+ pr_err("%s: Failed to register wcd SB driver: %d\n",
+ __func__, ret[3]);
+
+ for (i = 0; i < NUM_WCD9XXX_REG_RET; i++) {
+ if (ret[i])
+ return ret[i];
+ }
+
+ return 0;
+}
+
+void wcd9xxx_exit(void)
+{
+ wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_PROBING);
+
+ i2c_del_driver(&tabla_i2c_driver);
+ i2c_del_driver(&wcd9xxx_i2c_driver);
+ i2c_del_driver(&wcd9335_i2c_driver);
+ slim_driver_unregister(&wcd_slim_driver);
+}
+
+MODULE_DESCRIPTION("Codec core driver");
+MODULE_LICENSE("GPL v2");